/* ═══════════════════════════════════════════════════════════════
   P13 动效层（2026-10-16）—— 注入到**基准页**，让全站文字"灵动"起来
   参数取自 workbuddy.cn 的实测（用户点名的参考站）：
     · 时长 450ms（主）/ 420 / 460 / 620
     · 缓动 cubic-bezier(.22,.61,.36,1)（位移）＋ ease（不透明度）
     · 位移 translateY(28px) scale(.985) → none（小幅升起收拢，不是大滑动）
     · 错峰 60~70ms
   只做"增强"：隐藏态由 JS 加类（无 JS 时页面照常显示，不会白屏）。
   ═══════════════════════════════════════════════════════════════ */

.p13-pre {
  opacity: 0;
  transform: translateY(28px) scale(0.985);
  will-change: opacity, transform;
}
.p13-in {
  opacity: 1;
  transform: none;
  transition: opacity 450ms ease, transform 450ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ── 全站开场：**自包含的 LOADING 开场屏**（对应我方 Preloader 的视觉）
   2026-10-16：先试"复用我方 .preloader 样式"→ 那些规则带 Astro 作用域 `[data-astro-cid-*]`，
   补 cid 也稳不了（实测被压成 display:none）→ 改成这套自包含实现，不依赖任何 scoped 样式。 */
.p13-load {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  background: #0a0a0a;
  animation: p13-load-auto 600ms cubic-bezier(0.22, 0.61, 0.36, 1) 2200ms forwards;
  transition: opacity 600ms cubic-bezier(0.22, 0.61, 0.36, 1);
}
@keyframes p13-load-auto {
  to { opacity: 0; pointer-events: none; visibility: hidden; }
}
.p13-load.is-leaving { opacity: 0; pointer-events: none; }
.p13-load.is-gone { display: none; }
.p13-load__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.1rem;
  min-width: min(320px, 60vw);
}
.p13-load__mark {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  border: 1px solid rgba(237, 235, 230, 0.22);
  position: relative;
}
.p13-load__mark::after {
  content: "";
  position: absolute;
  inset: 9px;
  border-radius: 999px;
  background: #a855f7;
  animation: p13-load-pulse 1200ms ease-in-out infinite;
}
@keyframes p13-load-pulse {
  0%, 100% { opacity: 0.45; transform: scale(0.9); }
  50%      { opacity: 1;    transform: scale(1.05); }
}
.p13-load__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  width: 100%;
  font-family: "Courier Prime", "Courier New", ui-monospace, monospace;
  color: rgba(237, 235, 230, 0.62);
  letter-spacing: 0.18em;
  font-size: 0.72rem;
}
.p13-load__pct { color: #edebe6; font-weight: 700; font-size: 0.86rem; }
.p13-load__bar {
  width: 100%;
  height: 1px;
  background: rgba(237, 235, 230, 0.14);
  overflow: hidden;
}
.p13-load__bar > i {
  display: block;
  height: 100%;
  width: 100%;
  background: #a855f7;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 120ms linear;
}
@media (prefers-reduced-motion: reduce) {
  .p13-load { display: none !important; }
}
.p13-intro {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  background: #0a0a0a;
  /* ★ 2026-10-16 严重 BUG 根治：原来遮罩**只靠 JS 退场**，而基准页有外链视频 → load 永不触发
     → 黑罩把整站盖住。现在加**纯 CSS 自动淡出**（1.8s 后开始、600ms 到 0），
     哪怕 JS 一行没跑也一定会消失；JS 只是"提前收"。 */
  animation: p13-intro-auto 600ms cubic-bezier(0.22, 0.61, 0.36, 1) 1800ms forwards;
  transition: opacity 600ms cubic-bezier(0.22, 0.61, 0.36, 1);
}
@keyframes p13-intro-auto {
  to { opacity: 0; pointer-events: none; visibility: hidden; }
}
.p13-intro.is-out { opacity: 0; pointer-events: none; }
.p13-intro.is-gone { display: none; }
.p13-intro__mark {
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  letter-spacing: 0.08em;
  color: #edebe6;
  opacity: 0;
  animation: p13-mark-in 700ms cubic-bezier(0.22, 0.61, 0.36, 1) 80ms forwards;
}
.p13-intro__bar {
  width: min(180px, 34vw);
  height: 1px;
  margin-top: 1.4rem;
  background: rgba(237, 235, 230, 0.14);
  overflow: hidden;
}
.p13-intro__bar > i {
  display: block;
  height: 100%;
  width: 40%;
  background: #a855f7;
  animation: p13-bar 1100ms cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
}
@keyframes p13-mark-in {
  from { opacity: 0; transform: translateY(14px) scale(0.985); }
  to   { opacity: 1; transform: none; }
}
@keyframes p13-bar {
  from { transform: translateX(-110%); }
  to   { transform: translateX(260%); }
}

/* 导航项：hover 的"灵动"（基准导航原本只有颜色变化） */
nav a,
nav button {
  transition: color 220ms cubic-bezier(0.22, 0.61, 0.36, 1), opacity 220ms cubic-bezier(0.22, 0.61, 0.36, 1);
}
nav a:hover { transform: translateY(-1px); }

/* 尊重"减少动态效果" */
@media (prefers-reduced-motion: reduce) {
  .p13-pre, .p13-in { opacity: 1 !important; transform: none !important; transition: none !important; }
  .p13-intro { display: none !important; }
}